IMS Service Routing Information Modification to Reduce Signaling Load
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Solution Overview
Problem
Current IP Multimedia Subsystem (IMS) networks face complexity and high signaling load due to the need for extensive SIP messaging and capacity scaling with VoIP service behavior, especially in handling VoIP services, which requires configuration data for each service and affects network resource dimensioning.
Innovation Solution
A method and system where a terminal sends service availability information to a serving network node, allowing modification or generation of service routing information to prevent registration with application servers for services not needed, using Initial Filter Criteria (iFC) with Trigger Points set to FALSE to deactivate unnecessary services, reducing network load and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extensive SIP messaging and service registration processes are used in IMS networks, then service delivery reliability is improved, but signaling load and network complexity increase
Solution Approach 1:
The patent extracts and removes unnecessary service registration steps from the IMS network signaling process. By identifying services that are already available at the terminal and eliminating the need to register them with application servers, the signaling load is reduced while maintaining service delivery reliability for actually needed services.
Solution Approach 2:
The patent implements preliminary action by having the terminal declare its service availability information before the normal service registration process. This allows the network to pre-determine which services can be skipped, reducing subsequent signaling steps and simplifying the overall registration流程 while ensuring reliable delivery for necessary services.
2Adaptability or versatility
If service registration is performed for all available services, then service availability is improved, but signaling load increases
Solution Approach 1:
The patent applies partial action by registering only the subset of services that are actually needed rather than all available services. The terminal provides service availability information indicating which services it has, and the network selectively registers only those services not already available at the terminal, reducing signaling load while maintaining necessary service availability.
Solution Approach 2:
The terminal performs self-service by autonomously declaring its service availability information to the network. This eliminates the need for the network to query or manage registration for services that the terminal already provides, reducing signaling load while ensuring that only genuinely needed services are registered and made available through the network.
3Manufacturing precision
If manual configuration and user-administrator interaction are required for service registration, then service accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The terminal performs self-service by automatically generating and providing its service availability information to the network during registration. This eliminates the need for manual configuration or user-administrator interaction, improving ease of operation while maintaining service configuration accuracy through the structured service availability data that the terminal autonomously declares.
Solution Approach 2:
The terminal provides feedback to the network about its service capabilities through service availability information. This automated feedback mechanism allows the network to accurately configure services based on actual terminal capabilities without manual intervention, maintaining precision while dramatically improving ease of operation.
Data Source
AI summary
A method is described for handling services in a service providing network. The network comprises a serving network node connected to one or more application servers. The method comprises the steps of a first terminal comprising one or more services, preferably VoIP services, sending a registration message to the serving network node associated with the user terminal; providing the serving network node in response to the registration message, with service routing information associated with the first terminal, the service routing information arranged to prevent registration of the first terminal to services residing on the application servers and corresponding with one or more services in the first terminal.